Abstract Strontium ferrite nanoparticles were synthesized in the presence of strontium ferricarboxylate precursor by using thermolysis precursor route. Simultaneous Thermogravimetry-Differential Scanning Calorimetry was used to study and analyze the thermolysis process. X-ray diffraction study reveals the formation homogenous spinel type cubic structure of the strontium ferrite nanoparticles. A reaction pathway was identified from the thermal decomposition of strontium hexapropionato ferrate(III) precursor to the final product. Mӧssbauer parameters were analyzed for the precursor, intermediates, final product and compared with the literature reported values.